Among them, global and regional services are oriented to libraries and carried out among library members in the system; Local service is end-user-oriented, that is, QP's end-user-oriented service is realized through local service. Attached Figure1Schematic Diagram of Qp System Service Mode Structure QP system's service to end users mainly includes real-time question and answer (chat) and email consultation. Global: the global cooperation network of QP system. The member library of QP system can send questions that the library can't answer to the global network, and the system will automatically assign them to the member library that is most suitable for answering questions according to the characteristics of the questions, so as to effectively use the resources of each member library. Regional): QP system provides a way for regional libraries and information institutions to cooperate in virtual consulting services. By joining QP system in the form of regional cooperation, each member library of the alliance can not only enjoy all local services, but also cooperate. For example, a question that cannot be answered by a member library can be forwarded to other member libraries for answers. In addition, the QP system will establish a knowledge base belonging to the Federation, which can be retrieved and used by member libraries. Each regional consortium can also have a super administrator. Local: The local library provides e-mail and real-time Q&A consultation service for end users by establishing a link between e-mail and real-time Q&A on its home page. The librarian in charge of consultation can log in to QP system to provide services for users only by user name and password. All technical processing is carried out by QP system, and a knowledge base belonging to the library can also be established. 1.2 service flow QP system mainly consists of three parts: member file, which records the characteristic data of the member library that has joined the system. When applying to join the QP system, the member library needs to fill in the member file. If they don't fill it in, they can't use the global network service. Question and Answer Manager, a software system responsible for the input, routing and answering of questions, is mainly used to distribute and coordinate functions, and organically links the question hall and the answer hall through corresponding mechanisms. The knowledge base is a searchable database that stores questions and answers. The workflow of the whole system is: the library of questions inputs questions into the system. The system automatically searches the knowledge base, and if this question and its answer are already in the database, it will automatically reply to the question bank. If not, the problem will enter the request manager for further analysis. The system searches the member data, finds out the library suitable for answering questions and forwards the questions. If the question cannot be automatically matched by the system, it will be sent to the standby librarian for manual matching. The library responsible for answering questions will receive an e-mail and be told that there is a question assigned to them to answer, so they log on to QP to check the question and then answer according to the library resources and other network resources. If they can't answer this question, or the question is wrongly assigned to an inappropriate library, they can use the "Reject Redistribution" function to send the question back to the system for redistribution. If they need more information about this issue, they can use the "Request for Clarification" function. After the questions are answered, the library of questions will be notified that the answers to the questions are stored in the "Results Store" and can be accessed. Subsequently, questions and answers will also be added to the knowledge base and gradually accumulated. Before adding to the knowledge base, there will be an editing process to ensure that any personal information will be deleted and keywords and topics will be added accordingly. The format of URL and bibliographic references will also be standardized, and the time-sensitive data will be specially marked, so that questions and answers can be stored in the knowledge base in a standardized way for easy retrieval. In addition to the questions/answers of QP system, other information institutions or institutions providing consulting services can also provide their own questions/answers to the knowledge base, which makes the knowledge base a complete searchable knowledge base. 1.3 local service for end users QP's local service is the embodiment that the system provides services for end users through the local library, and it is conducted in two forms: email consultation and real-time question-and-answer consultation. The service runs completely on the server of QP system, and the member library can log in to QP system to manage the service only by user name and password. Let's introduce the local service from the librarian interface and user interface: (1) user interface. User interface includes email consultation interface and real-time question-and-answer consultation interface. QP system provides a user interface template for member libraries. The library can download it and customize it according to the needs of the library, for example, make it consistent with the overall style according to the style of the library homepage, and then put it on the library homepage to facilitate users' direct access. In the e-mail consultation section, users need to fill in the e-mail address and the content of the question. For each user who asks a question, the system will automatically set an account. After the user submits the question, the user's account and password will be sent to the user's mailbox, and the user can view the answer to the question and his own question history according to this account. After answering the question, the system will automatically send the answer to the user's mailbox, so the mailbox filled in by the user must be true, valid and unique. In the part of real-time question-and-answer consultation, users and consulting librarians are online at the same time and consult in the form of real-time question-and-answer. Users need to fill in their names and email addresses. After the real-time question and answer begins, another window will pop up, and soon a consultant librarian will be online to communicate with users. After the real-time Q&A, the system will automatically send the record of Q&A consultation to the email address filled by the user for future reference. At present, the real-time Q&A service of QP system can only provide text interactive service, but can't provide consultation service based on * * *. However, QP system is currently cooperating with Convey Company in the United States to upgrade the real-time question and answer service system and add the function of * * * browsing at the same time. (2) the librarian interface.